Mouth guard



FIG. 1 is a front view of the mouth guard of the present invention.

FIG. 2 is a rear view of the mouth guard of the present invention.

FIG. 3 is a bottom view of the mouth guard of the present invention.

FIG. 4 is a left side view of the mouth guard of the present invention.

FIG. 5 is a right side view of the mouth guard of the present invention; and,

FIG. 6 is a top view of the mouth guard of the present invention. 

I claim the ornamental design for a mouth guard, as shown and described. 